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Table 1. Cases of Sexually Transmitted Diseases Reported by State Health Departments and Rates per 100,000 Population, United States, 1941-2009

This web page is archived for historical purposes and is no longer being updated. Newer data is available on the STD Data and Statistics page.

Year*

Syphilis

Chlamydia

Gonorrhea

Chancroid

All Stages

PrimaryandSecondary

EarlyLatent

Late andLate Latent†

Congenital

Cases

Rate

Cases

Rate

Cases

Rate

Cases

Rate

Cases

Rate‡

Cases

Rate

Cases

Rate

Cases

Rate

1941

485,560

368.2

68,231

51.7

109,018

82.6

202,984

153.9

17,600

651.1

NR

-

193,468

146.7

3,384

2.5

1942

479,601

363.4

75,312

57.0

116,245

88.0

202,064

153.1

16,918

566.0

NR

-

212,403

160.9

5,477

4.1

1943

575,593

447.0

82,204

63.8

149,390

116.0

251,958

195.7

16,164

520.7

NR

-

275,070

213.6

8,354

6.4

1944

467,755

367.9

78,443

61.6

123,038

96.7

202,848

159.6

13,578

462.0

NR

-

300,676

236.5

7,878

6.1

1945

359,114

282.3

77,007

60.5

101,719

79.9

142,187

111.8

12,339

431.7

NR

-

287,181

225.8

5,515

4.3

1946

363,647

271.7

94,957

70.9

107,924

80.6

125,248

93.6

12,106

354.9

NR

-

368,020

275.0

7,091

5.2

1947

355,592

252.3

93,545

66.4

104,124

73.9

122,089

86.6

12,200

319.6

NR

-

380,666

270.0

9,515

6.7

1948

314,313

218.2

68,174

47.3

90,598

62.9

123,312

85.6

13,931

383.0

NR

-

345,501

239.8

7,661

5.3

1949

256,463

175.3

41,942

28.7

75,045

51.3

116,397

79.5

13,952

382.4

NR

-

317,950

217.3

6,707

4.6

1950

217,558

146.0

23,939

16.7

59,256

39.7

113,569

70.2

13,377

368.3

NR

-

286,746

192.5

4,977

3.3

1951

174,924

116.1

14,485

9.6

43,316

28.7

98,311

65.2

11,094

290.4

NR

-

254,470

168.9

4,233

2.8

1952

167,762

110.2

10,449

6.9

36,454

24.0

105,238

69.1

8,553

218.8

NR

-

244,957

160.8

3,738

2.5

1953

148,573

95.9

8,637

5.6

28,295

18.3

98,870

63.8

7,675

193.9

NR

-

238,340

153.9

3,338

2.2

1954

130,697

82.9

7,147

4.5

23,861

15.1

89,123

56.5

6,676

164.0

NR

-

242,050

153.5

3,003

1.9

1955

122,392

76.2

6,454

4.0

20,054

12.5

86,526

53.8

5,354

130.7

NR

-

236,197

147.0

2,649

1.7

1956

130,201

78.7

6,392

3.9

19,783

12.0

95,097

57.5

5,491

130.4

NR

-

224,346

135.7

2,135

1.3

1957

123,758

73.5

6,576

3.9

17,796

10.6

91,309

54.2

5,288

123.0

NR

-

214,496

127.4

1,637

1.0

1958

113,884

66.4

7,176

4.2

16,556

9.7

83,027

48.4

4,866

114.6

NR

-

232,386

135.6

1,595

0.9

1959

120,824

69.2

9,799

5.6

17,025

9.8

86,740

49.7

5,130

119.7

NR

-

240,254

137.6

1,537

0.9

1960

122,538

68.8

16,145

9.1

18,017

10.1

81,798

45.9

4,416

103.7

NR

-

258,933

145.4

1,680

0.9

1961

124,658

68.8

19,851

11.0

19,486

10.8

79,304

43.8

4,163

97.5

NR

-

264,158

145.8

1,438

0.8

1962

126,245

68.7

21,067

11.5

19,585

10.7

79,533

43.3

4,070

97.7

NR

-

263,714

143.6

1,344

0.7

1963

124,137

66.5

22,251

11.9

18,235

9.8

78,076

41.8

4,031

98.4

NR

-

278,289

149.0

1,220

0.7

1964

114,325

60.4

22,969

12.1

17,781

9.4

68,629

36.3

3,516

87.3

NR

-

300,666

158.9

1,247

0.7

1965

112,842

58.9

23,338

12.2

17,458

9.1

67,317

35.1

3,564

94.8

NR

-

324,925

169.5

982

0.5

1966

105,159

54.2

21,414

11.0

15,950

8.2

63,541

32.7

3,170

87.9

NR

-

351,738

181.2

838

0.4

1967

102,581

52.2

21,053

10.7

15,554

7.9

61,975

31.5

2,894

82.2

NR

-

404,836

205.9

784

0.4

1968

96,271

48.4

19,019

9.6

15,150

7.6

58,564

29.4

2,381

68.0

NR

-

464,543

233.4

845

0.4

1969

92,162

45.7

19,130

9.5

15,402

7.6

54,587

27.1

2,074

57.6

NR

-

534,872

265.4

1,104

0.5

1970

91,382

44.8

21,982

10.8

16,311

8.0

50,348

24.7

1,953

52.3

NR

-

600,072

294.2

1,416

0.7

1971

95,997

46.4

23,783

11.5

19,417

9.4

49,993

24.2

2,052

57.7

NR

-

670,268

324.1

1,320

0.6

1972

91,149

43.6

24,429

11.7

20,784

9.9

43,456

20.8

1,758

54.0

NR

-

767,215

366.6

1,414

0.7

1973

87,469

41.4

24,825

11.7

23,584

11.2

37,054

17.5

1,527

48.7

NR

-

842,621

398.7

1,165

0.6

1974

83,771

39.3

25,385

11.9

25,124

11.8

31,854

14.9

1,138

36.0

NR

-

906,121

424.7

945

0.4

1975

80,356

37.3

25,561

11.9

26,569

12.3

27,096

12.6

916

29.1

NR

-

999,937

464.1

700

0.3

1976

71,761

33.0

23,731

10.9

25,363

11.7

21,905

10.1

626

19.8

NR

-

1,001,994

460.6

628

0.3

1977

64,621

29.4

20,399

9.3

21,329

9.7

22,313

10.2

463

13.9

NR

-

1,002,219

456.0

455

0.2

1978

64,875

29.2

21,656

9.8

19,628

8.8

23,038

10.4

434

13.0

NR

-

1,013,436

456.3

521

0.2

1979

67,049

29.9

24,874

11.1

20,459

9.1

21,301

9.5

332

9.5

NR

-

1,004,058

447.1

840

0.4

1980

68,832

30.3

27,204

12.0

20,297

8.9

20,979

9.2

277

7.7

NR

-

1,004,029

442.1

788

0.3

1981

72,799

31.7

31,266

13.6

21,033

9.2

20,168

8.8

287

7.9

NR

-

990,864

431.8

850

0.4

1982

75,579

32.6

33,613

14.5

21,894

9.5

19,799

8.5

259

7.0

NR

-

960,633

414.7

1,392

0.6

1983

74,637

31.9

32,698

14.0

23,738

10.2

17,896

7.7

239

6.6

NR

-

900,435

385.1

847

0.4

1984

69,872

29.6

28,607

12.1

23,131

9.8

17,829

7.6

305

8.3

7,594

6.5

878,556

372.5

665

0.3

1985

67,563

28.4

27,131

11.4

21,689

9.1

18,414

7.7

329

8.7

25,848

17.4

911,419

383.0

2,067

0.9

1986

67,779

28.2

27,667

11.5

21,656

9.0

18,046

7.5

410

10.9

58,001

35.2

892,229

371.5

3,045

1.3

1987

87,286

36.0

35,585

14.7

28,233

11.7

22,988

9.5

480

12.6

91,913

50.8

787,532

325.0

4,986

2.1

1988

104,546

42.8

40,474

16.6

35,968

14.7

27,363

11.2

741

19.0

157,854

87.1

738,160

301.9

4,891

2.0

1989

115,089

46.6

45,826

18.6

45,394

18.4

22,032

8.9

1,837

45.5

200,904

102.5

733,294

297.1

4,697

1.9

1990

135,590

54.3

50,578

20.3

55,397

22.2

25,750

10.3

3,865

92.9

323,663

160.2

690,042

276.4

4,212

1.7

1991

128,719

50.9

42,950

17.0

53,855

21.3

27,490

10.9

4,424

107.6

381,228

179.7

621,918

245.8

3,476

1.4

1992

114,730

44.7

34,009

13.3

49,929

19.5

26,725

10.4

4,067

100.0

409,694

182.3

502,858

196.0

1,906

0.7

1993

102,612

39.5

26,527

10.2

41,919

16.1

30,746

11.8

3,420

85.5

405,332

178.0

444,649

171.1

1,292

0.5

1994

82,713

31.4

20,641

7.8

32,017

12.2

27,603

10.5

2,452

62.0

451,785

192.5

419,602

163.9

782

0.3

1995

69,359

26.0

16,543

6.2

26,657

10.0

24,296

9.1

1,863

47.8

478,577

187.8

392,651

147.5

607

0.2

1996

53,240

19.8

11,405

4.2

20,187

7.5

20,366

7.6

1,282

32.9

492,631

190.6

328,169

121.8

386

0.1

1997

46,716

17.1

8,556

3.1

16,631

6.1

20,447

7.5

1,082

27.9

537,904

205.5

327,665

120.2

246

0.1

1998

38,289

13.9

7,007

2.5

12,696

4.6

17,743

6.4

843

21.4

614,250

231.8

356,492

129.2

189

0.1

1999

35,385

12.7

6,617

2.4

11,534

4.1

16,655

6.0

579

14.6

662,647

247.2

360,813

129.3

110

0.0

2000

31,618

11.2

5,979

2.1

9,465

3.4

15,594

5.5

580

14.3

709,452

251.4

363,136

128.7

78

0.0

2001

32,284

11.3

6,103

2.1

8,701

3.0

16,976

5.9

504

12.5

783,242

274.5

361,705

126.8

38

0.0

2002

32,919

11.4

6,862

2.4

8,429

2.9

17,168

6.0

460

11.4

834,555

289.4

351,852

122.0

48

0.0

2003

34,289

11.8

7,177

2.5

8,361

2.9

18,319

6.3

432

10.6

877,478

301.7

335,104

115.2

54

0.0

2004

33,423

11.4

7,980

2.7

7,768

2.6

17,300

5.9

375

9.1

929,462

316.5

330,132

112.4

30

0.0

2005

33,288

11.2

8,724

2.9

8,176

2.8

16,049

5.4

339

8.2

976,445

329.4

339,593

114.6

17

0.0

2006

36,958

12.3

9,756

3.3

9,186

3.1

17,644

5.9

372

8.7

1,030,911

344.3

358,366

119.7

19

0.0

2007

40,925

13.6

11,466

3.8

10,768

3.6

18,256

6.1

435

10.2

1,108,374

367.5

355,991

118.0

23

0.0

2008

46,291

15.2

13,500

4.4

12,401

4.1

19,945

6.6

445

10.4

1,210,523

398.1

336,742

110.7

25

0.0

2009

44,828

14.7

13,997

4.6

13,066

4.3

17,338

5.7

427

10.0

1,244,180

409.2

301,174

99.1

28

0.0

*For 1941-1946, data were reported for the federal fiscal year ending June 30 of the year indicated. From 1947 to the present, data were reported for the calendar year ending December 31. For 1941-1958, data for Alaska and Hawaii were not included.

† Late and late latent syphilis includes late latent syphilis, latent syphilis of unknown duration, neurosyphilis, and late syphilis with clinical manifestations other than neurosyphilis.

‡ Rates include all cases of congenitally acquired syphilis per 100,000 live births. As of 1995, cases of congenital syphilis are obtained in hardcopy and electronic format on the basis of case reporting form CDC 73.126.

NR = No report.

Note: Adjustments to the number of cases reported from state health departments were made for hardcopy forms and for electronic data submissions through Jun 9, 2010 (see Appendix). The number of cases and the rates shown here supersede those published in previous reports. For more information regarding reporting, see Interpreting STD Surveillance Data in the Appendix. Cases and rates shown in this table exclude the outlying areas of Guam, Puerto Rico, and Virgin Islands.